Inventor · disambiguated record
Kyung-Ju Choi
Also filed as: CHOI KYUNG · CHOI KYUNG J · CHOI KYUNG-JU
48 granted patents·11 pending applications·1,243 citations·filing 1996–2019
99Inventor score
Top patents by PatentIndex Score
59 records- 0197US7625418B1Spacer arrangement for pleated filterAAF MCQUAY INC·Filed 2005·Granted Dec 1, 2009·58 cites·29 claims
- 0295US7896941B2Product and method of forming a gradient density fibrous filterAAF MCQUAY INC·Filed 2007·Granted Mar 1, 2011·38 cites·20 claims
- 0392US6230776B1Apparatus for forming fibrous filter mediaAAF INTERNATIONAL INC·Filed 2000·Granted May 15, 2001·57 cites·8 claims
- 0492US6045597APleated filter with spacer insertAAF INTERNATIONAL INC·Filed 1998·Granted Apr 4, 2000·69 cites·26 claims
- 0589US7255723B2Crest supported filter frame assembly and methodAAF MCQUAY INC·Filed 2004·Granted Aug 14, 2007·56 cites·8 claims
- 0689US7105124B2Method, apparatus and product for manufacturing nanofiber mediaAAF MCQUAY INC·Filed 2001·Granted Sep 12, 2006·27 cites·23 claims
- 0789US5672188AHigh capacity filter mediaAAF INTERNATIONAL·Filed 1996·Granted Sep 30, 1997·83 cites·19 claims
- 0887US7837756B2Filter with ePTFE and method of formingAAF MCQUAY INC·Filed 2007·Granted Nov 23, 2010·12 cites·43 claims
- 0986US7959705B2Filter with ePTFE and method of formingAAF MCQUAY INC·Filed 2010·Granted Jun 14, 2011·5 cites·23 claims
- 1085US6758878B2Thermobondable filter medium and border frame and method of making sameAAF MCQUAY INC·Filed 2002·Granted Jul 6, 2004·39 cites·33 claims
- 1184US8152889B2Filter with EPTFE and method of formingCHOI KYUNG-JU·Filed 2011·Granted Apr 10, 2012·5 cites·21 claims
- 1283US7398887B2Product and method of forming successive layers of face-to-face adjacent media with calculated pore sizeAAF MCQUAY INC·Filed 2004·Granted Jul 15, 2008·21 cites·12 claims
- 1381US7661540B2Method of forming spaced pleated filter material and product of sameAAF MCQUAY INC·Filed 2003·Granted Feb 16, 2010·24 cites·28 claims
- 1481US6398839B2Pleated fluid filter medium frameAAF INTERNAT·Filed 2001·Granted Jun 4, 2002·30 cites·5 claims
- 1581US5891482AMelt blowing apparatus for producing a layered filter media web productAAF INTERNATIONAL·Filed 1996·Granted Apr 6, 1999·35 cites·12 claims
- 1680US7097684B2Method of forming combined pleated scrim and filter media materials and product of sameAAF MCQUAY INC·Filed 2002·Granted Aug 29, 2006·23 cites·70 claims
- 1780US6165242APleated filter media with crest spacers and method of makingAAF INTERNATIONAL INC·Filed 1999·Granted Dec 26, 2000·52 cites·25 claims
- 1877US6159318AMethod for forming fibrous filter media, filter units and productAAF INTERNATIONAL INC·Filed 1998·Granted Dec 12, 2000·40 cites·26 claims
- 1977US5725812AMelt blowing apparatus and method for forming a fibrous layered web of filter media including a fluid distribution arrangementAAF INTERNATIONAL·Filed 1996·Granted Mar 10, 1998·37 cites·14 claims
- 2076US9587329B2Process for making a polymeric fibrous material having increased beta contentCHOI KYUNG-JU·Filed 2013·Granted Mar 7, 2017·1 cites·11 claims
- 2176US6652748B1Treated filter media and frameAAF MCQUAY INC·Filed 2000·Granted Nov 25, 2003·19 cites·3 claims
- 2276US5968373AFilter arrangement having at least two successive layers having predetermined spacing and its method for makingAAF INTERNATIONAL·Filed 1997·Granted Oct 19, 1999·43 cites·11 claims
- 2375US6254653B1Pleated fluid filter medium blendAAF INTERNAT·Filed 1999·Granted Jul 3, 2001·42 cites·14 claims
- 2474US6409864B1Method of assembly of pleated filter with spacer insertAAF INTERNATIONAL INC·Filed 2000·Granted Jun 25, 2002·17 cites·6 claims
- 2574US6165244AFilter media with fluid stream positioned fibersAAF INTERNATIONAL INC·Filed 1999·Granted Dec 26, 2000·40 cites·17 claims
- 2673US10272375B2Filter material comprising an expanded polytetrafluoroethylene containing layer and a natural fiber containing layerCHOI KYUNG JU·Filed 2014·Granted Apr 30, 2019·2 cites·20 claims
- 2773US6022305APleating apparatusAAF INTERNATIONAL·Filed 1998·Granted Feb 8, 2000·55 cites·12 claims
- 2872US6165241APleated filter media with strip spacers and method of makingAAF INTERNATIONAL INC·Filed 1999·Granted Dec 26, 2000·38 cites·24 claims
- 2970US7112255B2Thermobondable filter medium and border frame and method of making sameAAF MCQUAY INC·Filed 2003·Granted Sep 26, 2006·15 cites·14 claims
- 3070US5928396APocket filter and method and apparatus for making the sameAAF INTERNATIONAL·Filed 1997·Granted Jul 27, 1999·37 cites·24 claims
- 3170US5744036APleated filter arrangementAAF INTERNATIONAL·Filed 1997·Granted Apr 28, 1998·35 cites·14 claims
- 3268US7687416B2Arrangement for forming a layered fibrous mat of varied porosityAAF MCQUAY INC·Filed 2006·Granted Mar 30, 2010·4 cites·28 claims
- 3366US2017226675A1System and process for making a polymeric fiberous material having increased beta contentCHOI KYUNG-JU·Filed 2016·Application pending·0 cites
- 3463US5976427AMelt blowing method for forming layered webs of filter mediaAAF INTERNATIONAL·Filed 1998·Granted Nov 2, 1999·26 cites·11 claims
- 3562US7390443B1Method of forming successive layers of face-to-face adjacent media with calculated pore sizeAAF MCQUAY INC·Filed 2004·Granted Jun 24, 2008·17 cites·24 claims
- 3661US6596205B1Arrangement for forming a layered fibrous mat of varied porosityAAF MCQUAY·Filed 2000·Granted Jul 22, 2003·8 cites·22 claims
- 3761US6387140B1Fluid stream velocity distribution controlAAF MCQUAY INC·Filed 2000·Granted May 14, 2002·8 cites·18 claims
- 3859US5680765ALean direct wall fuel injection method and devicesFiled 1996·Granted Oct 28, 1997·22 cites·10 claims
- 3955US6327893B1Filter layer comparative testing method and apparatusAAF MCQUAY·Filed 1999·Granted Dec 11, 2001·22 cites·23 claims
- 4055US5976209AMelt blown product formed as a fibrous layered web of filter mediaAAF INTERNATIONAL·Filed 1998·Granted Nov 2, 1999·14 cites·6 claims
- 4154US6908294B2Apparatus for forming a layered fibrous mat of varied porosityAAF MCQUAY INC·Filed 2003·Granted Jun 21, 2005·3 cites·21 claims
- 4254US6254476B1Air circulating fanAAF INTERNATIONAL INC·Filed 1999·Granted Jul 3, 2001·19 cites·27 claims
- 4353US7210914B2Series apparatus for forming layered fibrous mat of differing fibers and controlled surfacesAAF MCQUAY INC·Filed 2004·Granted May 1, 2007·0 cites·20 claims
- 4453US2008093014A1Pleated Corrugated Media and Method of MakingCHOI KYUNG-JU·Filed 2007·Application pending·0 cites
- 4552US2014367325A1Method for Multi-Stage Expansion and Stretching of Film and FilterCHOI KYUNG-JU·Filed 2009·Application pending·0 cites
- 4652US2007251634A1Method of Forming Spaced Pleated Filter Material and Product of SameCHOI KYUNG-JU·Filed 2007·Application pending·0 cites
- 4751US6067790ALean direct wall fuel injection method and devicesFiled 1997·Granted May 30, 2000·16 cites·7 claims
- 4849US11590443B2System and method for making electret mediaCLEAN AND SCIENCE COMPANY LTD·Filed 2019·Granted Feb 28, 2023·0 cites·21 claims
- 4949US2006151383A1Pleated corrugated media and method of makingAAF MCQUAY INC·Filed 2005·Application pending·0 cites
- 5048US6736914B2Series arrangement for forming layered fibrous mat of differing fibers and controlled surfacesAAF MCQUAY INC·Filed 2001·Granted May 18, 2004·0 cites·20 claims
Showing the top 50 of 59 patent records by PatentIndex Score.
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